Palaver is another word for smoking weed. Much like the story behind 4:20, 'palaver' comes from a group of stoners that met up every Monday night to play cards and discuss The Dark Tower, by S.King. In The Dark Tower, Palaver is explained as a meeting where people chat to one another.

As the monday night meetings evolved the friends would end up discussing more obscure topics, as you do when stoned. These would then turn into silly debates, causing a palaver.